Our take: For those that have had cancer or know someone that has, any new findings for improving the treatment for cancer is a relief. Judy Woodruff, of PBS Newshour, interviews Dr. Harold Varmus, about the institute's findings:

"Scientists say they have found new insights into four genetically distinct types of breast cancer, potentially altering the way doctors one day treat the disease.

"The findings were published yesterday in the journal 'Nature' as part of a comprehensive genetic analysis of breast cancer."